Modeling Symptoms of Dyslexia Based on Working Memory and Anxiety with the Mediating Role of Information Processing Speed in Children
Keywords:
Anxiety, Dyslexia, Information Processing Speed, Working MemoryAbstract
Purpose: The present study aimed to predict symptoms of dyslexia based on working memory and anxiety, with the mediating role of information processing speed in children.
Materials and Methods: The research method was correlational with a path analysis design. The statistical population included all male and female students in the fourth to sixth grades during the 2023–2024 academic year in Tehran, from which 300 students were selected using purposive sampling. The research instruments included the Reading and Dyslexia Test (NEMA; Karami Noori & Moradi, 2005), the Dyslexia Checklist (RLDT; Azizzian & Abedi, 2003), the Wechsler Intelligence Scale for Children – Fourth Edition (WISC-IV), and the Short Form of the Spence Children’s Anxiety Scale (SCAS; Ahlen et al., 2018).
Findings: The results of path analysis indicated that the direct effect of working memory on dyslexia symptoms was significant (p < .05). The direct effect of anxiety on dyslexia symptoms was also significant (p < .05). Furthermore, the direct effect of information processing speed on dyslexia symptoms was significant (p < .05). The direct effect of working memory on information processing speed was significant (p < .05), and the direct effect of anxiety on information processing speed was also significant (p < .05). Additionally, the indirect effect of working memory on dyslexia symptoms through the mediating role of information processing speed was significant (p < .05), and the indirect effect of anxiety on dyslexia symptoms through the mediating role of information processing speed was also significant (p < .05).
Conclusion: Based on the obtained results, implementing interventions aimed at improving working memory and reducing anxiety may help decrease symptoms of dyslexia in children.
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References
Ahlen, J., Vigerland, S., & Ghaderi, A. (2018). Development of the Spence Children’s Anxiety Scale-Short Version (SCAS-S). Journal of psychopathology and behavioral assessment, 40, 288-304. https://doi.org/10.1007/s10862-017-9637-3
American Psychiatric, A. (2013). Diagnostic and Statistical Manual of Mental Disorders (DSM-5) (Translated edition ed.). Ravan Publications.
Amiralsadat Hafshejani, F., Akbari, B., Hosseinkhanzadeh, A. A., & Abolghasemi, A. (2021). Factor Structure, Reliability, and Validity of the Enhanced Short Form of the Spence Children’s Anxiety Scale. Journal of Mashhad University of Medical Sciences Faculty of Medicine, 64(5), 3940-3952. https://sid.ir/paper/1029483/fa
Amrollahi Biouki, F., & Hosseinkhanzadeh, A. A. (2017). The Effect of Self-Instruction Technique on Improving Reading Performance and Academic Self-Efficacy of Students with Dyslexia. Psychology of Exceptional Individuals, 7(25), 53-73. https://doi.org/10.22054/jpe.2017.20839.1532
Azizian, M., & Abedi, M. R. (2003). Construction and Standardization of a Diagnostic Reading Level Test for Third Grade Elementary Students. Iranian Journal of Psychiatry and Clinical Psychology, 11(4), 379-387. http://ijpcp.iums.ac.ir/article-42-1-fa.html
Calet, N., Palma, N. G., Defior, S., & Fernández, G. J. (2019). Linguistic and Non-Linguistic Prosodic Skills in Spanish Children with Developmental Dyslexia. Research in Developmental Disabilities, 90, 92-100. https://doi.org/10.1016/j.ridd.2019.04.013
Catts, H. W., Terry, N. P., Lonigan, C. J., Compton, D. L., Wagner, R. K., Steacy, L. M., & Petscher, Y. (2024). Revisiting the Definition of Dyslexia. Annals of Dyslexia, 74(3), 282-302. https://doi.org/10.1007/s11881-023-00295-3
Chieffo, D. P. R., Arcangeli, V., Moriconi, F., Marfoli, A., Lino, F., Vannuccini, S., & Mercuri, E. M. (2023). Specific Learning Disorders (SLD) and Behavior Impairment: Comorbidity or Specific Profile? Children, 10(8), 1356. https://doi.org/10.3390/children10081356
Covey, T. J., Zivadinov, R., Shucard, J. L., & Shucard, D. W. (2011). Information Processing Speed, Neural Efficiency, and Working Memory Performance in Multiple Sclerosis: Differential Relationships with Structural Magnetic Resonance Imaging. Journal of Clinical and Experimental Neuropsychology, 33(10), 1129-1145. https://doi.org/10.1080/13803395.2011.614597
Daniel, J., Clucas, L., & Wang, H. H. (2025). Identifying Students with Dyslexia: Exploration of Current Assessment Methods. Annals of Dyslexia, 75(1), 19-41. https://doi.org/10.1007/s11881-024-00313-y
Gray, S., Fox, A. B., Green, S., Alt, M., Hogan, T. P., Petscher, Y., & Cowan, N. (2019). Working Memory Profiles of Children with Dyslexia, Developmental Language Disorder, or Both. Journal of Speech, Language, and Hearing Research, 62(6), 1839-1858. https://doi.org/10.1044/2019_JSLHR-L-18-0148
Hachmann, W. M., Cashdollar, N., Postiglione, F., & Job, R. (2020). The Relationship of Domain-General Serial Order Memory and Reading Ability in School Children with and without Dyslexia. Journal of Experimental Child Psychology, 193, 1-39. https://doi.org/10.1016/j.jecp.2019.104789
Hair, J. F., Risher, J. J., Sarstedt, M., & Ringle, C. M. (2019). When to Use and How to Report the Results of PLS-SEM. European Business Review, 31(1), 2-24.
Heydari, T., Amiri, S., & Molavi, H. (2012). Effectiveness of the Davis Dyslexia Correction Method on the Reading Performance of Children with Dyslexia. Applied Psychology Quarterly, 6(2), 41-58. https://apsy.sbu.ac.ir/article_95662.html
Jacobson, L. A., Ryan, M., Martin, R. B., Ewen, J., Mostofsky, S. H., Denckla, M. B., & Mahone, E. M. (2011). Working Memory Influences Processing Speed and Reading Fluency in ADHD. Child Neuropsychology, 17(3), 209-224. https://doi.org/10.1080/09297049.2010.532204
Karami Noori, R., & Moradi, A. R. (2005). NEMA Reading and Dyslexia Test. Academic Center for Education, Culture and Research, Teacher Training Unit.
Knoop-van Campen, C. A., Segers, E., & Verhoeven, L. (2018). How Phonological Awareness Mediates the Relation Between Working Memory and Word Reading Efficiency in Children with Dyslexia. Dyslexia, 24(2), 156-169. https://doi.org/10.1002/dys.1583
Maehler, C., Joerns, C., & Schuchardt, K. (2019). Training Working Memory of Children with and without Dyslexia. Children, 6(3), 47. https://doi.org/10.3390/children6030047
Moll, K., Göbel, S. M., Gooch, D., Landerl, K., & Snowling, M. J. (2016). Cognitive Risk Factors for Specific Learning Disorder: Processing Speed, Temporal Processing, and Working Memory. Journal of Learning Disabilities, 49(3), 272-281. https://doi.org/10.1177/0022219414547221
Pennington, B. F., McGrath, L. M., Peterson, R., & Peterson, R. L. (2019). Diagnosing Learning Disorders: From Science to Practice. Guilford Publications.
Pickering, S. J. (2012). Working Memory in Dyslexia. In Working Memory and Neurodevelopmental Disorders (pp. 7-40). Psychology Press.
Polychroni, F., Antoniou, A. S., Kofa, O., & Charitaki, G. (2024). Reading Self-Concept, Trait Emotional Intelligence and Anxiety of Primary School Children with Dyslexia Frontiers in Education, https://doi.org/10.3389/feduc.2024.1371627
Rusciolelli, C., & Sobotka, S. A. (2025). Screening for Specific Learning Disorders: The Role of the Pediatric Primary Care Provider. Pediatric Annals, 54(4), e144-e149. https://doi.org/10.3928/19382359-20250206-05
Sheikholeslami, A., Bakhshayesh, A. R., Barzegar Bafrouei, K., & Mardai Aajami, V. (2017). The Effect of Working Memory Training on Reading Performance and Memory Capacity in Students with Reading Disability. Clinical Psychology, 9(2), 47-58. https://doi.org/10.22075/jcp.2017.9475
Smith-Spark, J. H., & Fisk, J. E. (2007). Working Memory Functioning in Developmental Dyslexia. Memory, 15(1), 34-56. https://doi.org/10.1080/09658210601043384
Tejero, P., Insa, B., & Roca, J. (2019). Difficulties of Drivers with Dyslexia When Reading Traffic Signs: Analysis of Reading, Eye Gazes, and Driving Performance. Journal of Learning Disabilities, 52(1), 84-95. https://doi.org/10.1177/0022219418765766
Toffalini, E., Marsura, M., Garcia, R. B., & Cornoldi, C. (2019). A Cross-Modal Working Memory Binding Span Deficit in Reading Disability. Journal of Learning Disabilities, 52(2), 99-108. https://doi.org/10.1177/0022219418786691
Wang, L. C., Chen, J. K., & Tsai, H. J. (2022). Anxiety and Reading Comprehension of Chinese Children with and without Reading Disabilities: The Role of Processing Speed. Learning disabilities Research & Practice, 37(2), 113-123. https://doi.org/10.1111/ldrp.12279
Wang, L. C., Liu, D., Xu, Z., Kuo, H. C., & Chen, J. K. (2024). The Relationship Between Anxiety and Processing Speed of Chinese Children with and without Dyslexia: From the Perspective of Attentional Control Theory. Cognitive therapy and research, 1-12.
Wolf, M., Gotlieb, R. J., Kim, S. A., Pedroza, V., Rhinehart, L. V., Tempini, M. L. G., & Sears, S. (2024). Towards a Dynamic, Comprehensive Conceptualization of Dyslexia. Annals of Dyslexia, 74(3), 303-324. https://doi.org/10.1007/s11881-023-00297-1
Wout, F. V., Donnell, M., & Jarrold, C. (2019). An Investigation of Children’s Working Memory Capacity for Task Rules. Cognitive Development, 51, 14-31.
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Copyright (c) 2025 Ladan Khazanedarloo (Author); Reza Ahmadi (Corresponding author); Ahmad Ghazanfari (Author)
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